Cotton genotypic variation in the photosynthetic response to irradiance

Title:

Cotton genotypic variation in the photosynthetic response to irradiance

Creator:

Pettigrew, W. T.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:99b57e9c-d2f4-4fd6-bfae-2250481644e9
uuid:99b57e9c-d2f4-4fd6-bfae-2250481644e9
issn:0300-3604
doi:10.1007/S11099-005-0014-1

Subject:

area leaf mass, chlorophyll, dark respiration rate, Gossypium, leaf area, and protein

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

The photosynthetic response of 8 cotton (Gossypium hirsutum L.) genotypes to changing irradiance was investigated under field conditions during the 1998 through 2000 growing seasons. Equations developed to describe the response of net photosynthetic rate (PN) to photosynthetic photon flux density (PPFD) demonstrated that, across all irradiances, the two okra leaf-type genotypes photosynthesized at a greater rate per unit leaf area than all of the six normal leaf-type genotypes. This superior photosynthetic performance of the okra leaf-type genotypes can be partially explained by their 13 % greater leaf chlorophyll content relative to that of the normal leaf-type genotypes. The 37 % reduction in leaf size brought upon by the okra leaf trait may have concentrated the amount of photosynthetic machinery per unit leaf area. Nevertheless, the lack of sufficient canopy leaf surface area suppressed the potential yield development that could accompany the higher PN per unit leaf area.

Language:

Multiple languages

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

567-571

Source:

Photosynthetica | 2004 Volume:42 | Number:4

Harvested from:

CDK

Metadata only:

false